Institutional Repository of Key Laboratory of Marine Ecology & Environmental Sciences, CAS
| Single source with series modifications: New method for preparing modified clay to control harmful algae blooms | |
Wang, Mingjiao1,2; Cao, Xihua1,2 ; Zhang, Bowen1,2; Mu, Qinglin3; Song, Xiuxian1,2; Yu, Zhiming1,2
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| 2023-08-01 | |
| Source Publication | MATERIALS & DESIGN
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| ISSN | 0264-1275 |
| Volume | 232Pages:11 |
| Corresponding Author | Cao, Xihua(caoxh@qdio.ac.cn) |
| Abstract | Modified clay (MC) is an effective and eco-friendly material that is widely used for controlling harmful algae blooms (HABs). In this study, a new method-single source with series modifications (SSSM)- was optimized for preparing a high-quality MC, and aluminum-rich clay (kaolin) was activated with a multistep treatment that included calcination (Cal), acid etching with alkali neutralization (Al-An), and raw clay supplementation and aging (RSA). The results showed that the removal efficiency of Prorocentrum donghaiense by the SSSM-MC exceeded 85%; Cal, Al-An, and RSA were indispensable processing steps for preparing the best MC with the SSSM method. The changes occurring in the mineral structure and chemical composition of kaolin treated by the different steps were characterized by FTIR, XRD, 27Al-NMR and Al-Ferron. Surface dehydroxylation and disruption of the kaolin lattice after calcination significantly changed the aluminum structure from AlVI to AlV and AlIV. The relatively reactive AlV was readily released from the kaolin lattice with acid etching, and it subsequently reacted with external OH- to generate different polyhydroxyaluminum species because alkali was added during the Al-An step. The acidity of the above complex was further decreased by RSA, greatly increasing the yield of SSSM-MC while assuring the quality. & COPY; 2023 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
| Keyword | Modified clay HAB control Kaolin activation Algal removal efficiency |
| DOI | 10.1016/j.matdes.2023.112077 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[41976145] ; China National Key R&D Program during the 14th Five -Year Plan Period[2022YFC3105204] ; National Key Research and Development Program (Intergovernmental Key Project for International Cooperation in Science and Technology Innovation)[SQ2022YFE010525] |
| WOS Research Area | Materials Science |
| WOS Subject | Materials Science, Multidisciplinary |
| WOS ID | WOS:001060274100001 |
| Publisher | ELSEVIER SCI LTD |
| WOS Keyword | RED-TIDE ; REMOVAL ; COAGULATION ; KAOLINITE ; ACTIVATION ; MECHANISMS ; ADSORPTION ; SURFACE ; ACID ; ALUM |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.qdio.ac.cn/handle/337002/182919 |
| Collection | 海洋生态与环境科学重点实验室 |
| Corresponding Author | Cao, Xihua |
| Affiliation | 1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Zhejiang Marine Ecol & Environm Monitoring Ctr, Zhoushan 316021, Peoples R China |
| First Author Affilication | Key Laboratory of Marine Ecology & Environmental Sciences, CAS |
| Corresponding Author Affilication | Key Laboratory of Marine Ecology & Environmental Sciences, CAS |
| Recommended Citation GB/T 7714 | Wang, Mingjiao,Cao, Xihua,Zhang, Bowen,et al. Single source with series modifications: New method for preparing modified clay to control harmful algae blooms[J]. MATERIALS & DESIGN,2023,232:11. |
| APA | Wang, Mingjiao,Cao, Xihua,Zhang, Bowen,Mu, Qinglin,Song, Xiuxian,&Yu, Zhiming.(2023).Single source with series modifications: New method for preparing modified clay to control harmful algae blooms.MATERIALS & DESIGN,232,11. |
| MLA | Wang, Mingjiao,et al."Single source with series modifications: New method for preparing modified clay to control harmful algae blooms".MATERIALS & DESIGN 232(2023):11. |
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